420969 has 8 divisors (see below), whose sum is σ = 585792. Its totient is φ = 268400.

The previous prime is 420967. The next prime is 420977. The reversal of 420969 is 969024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420969 - 2¹ = 420967 is a prime.

It is a super-2 number, since 2×420969² = 354429797922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2982 + ... + 3119.

It is an arithmetic number, because the mean of its divisors is an integer number (73224).

2⁴²⁰⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

420969 is a deficient number, since it is larger than the sum of its proper divisors (164823).

420969 is a wasteful number, since it uses less digits than its factorization.

420969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 420969 is about 648.8212388632. The cubic root of 420969 is about 74.9462726319.

It can be divided in two parts, 4209 and 69, that added together give a triangular number (4278 = T₉₂).

The spelling of 420969 in words is "four hundred twenty thousand, nine hundred sixty-nine".